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  <h1 class="topictitle1">What is a Community Preview Feature?</h1>

  
  <div>
	 <p>A Community Preview feature is a component of Intel&reg;
		Threading Building Blocks (Intel&reg; TBB) that is being introduced to gain early
		feedback from developers. Comments, questions and suggestions related to
		Community Preview features are encouraged and should be submitted to the forums
		at www.threadingbuildingblocks.org.
	 </p>

	 <p>The key properties of a CP feature are:
	 </p>

	 <ul type="disc">
		<li>
		  <p>It must be explicitly enabled. It is off by
			 default.
		  </p>

		</li>

		<li>
		  <p>It is intended to have a high quality
			 implementation.
		  </p>

		</li>

		<li>
		  <p>There is no guarantee of future existence or
			 compatibility.
		  </p>

		</li>

		<li>
		  <p>It may have limited or no support in tools such
			 as correctness analyzers, profilers and debuggers.
		  </p>

		</li>

	 </ul>

	 <div class="Note"><h3 class="NoteTipHead">
					Caution</h3>
		<p>A CP feature is subject to change in the future. It
		  may be removed or radically altered in future releases of the library. Changes
		  to a CP feature do NOT require the usual deprecation and deletion process.
		  Using a CP feature in a production code base is therefore strongly discouraged.
		</p>

	 </div>
  </div>


<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong>&nbsp;<a href="../../../reference/appendices/community_preview_features.htm">Community Preview Features</a></div>
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